Best Online Pet Pharmacies: Canadian Options for US Pet

Bravecto's 3-month dosing interval is the defining operational advantage over monthly products like NexGard or Frontline — owners who travel, have irregular schedules, or manage multiple dogs miss doses far less frequently at quarterly intervals than monthly ones. Via Canada Pet Care, the 2-pack at $99.99 covers six months of protection for large dogs, working out to roughly $16.67 per month — materially below US retail for the same product. The chew kills fleas within 2 hours of administration and reaches tick-killing efficacy within 12 hours. A prescription is required: have a valid US vet script before ordering, and plan for 7-14 day shipping from Canada so your current protection doesn't lapse during transit. Check your state regulations on importing prescription pet medications — most states permit personal-use quantities without issue, but verification takes five minutes and avoids a package hold.

Heartgard Plus covers heartworm prevention alongside roundworm and hookworm treatment in a single beef-flavored chew that most dogs accept without resistance or pilling workarounds. The 12-month supply from a single Canada Pet Care order eliminates monthly pharmacy runs and locks in pricing for the year — relevant given that US heartworm prevention prices have risen roughly 8-12% annually since 2020. At $109.99 for 12 months covering dogs 51-100 lbs, the per-month cost comes to approximately $9.17, compared to $14-18 at US retail. Prescription is required and shipping runs 7-14 days from Canada; since heartworm prevention requires consistent monthly dosing without gaps, order before your current supply runs out rather than at the last dose. FDA-approved and manufactured by Boehringer Ingelheim — the same product sold in US veterinary offices, sourced through a licensed Canadian pharmacy.

The Seresto collar at $59.99 from Canada Pet Care delivers 8 months of continuous flea and tick protection from a single purchase — roughly $7.50 per month, the lowest per-month cost of any format on this page. The slow-release technology embeds imidacloprid and flumethrin into the collar matrix and diffuses them across the coat continuously; unlike topicals, efficacy doesn't diminish if the dog swims or is bathed. No prescription required, which removes the lead time of getting a vet script before ordering internationally. A practical note on fit: the collar must maintain skin contact across the neck and shoulders to transfer the active ingredients — verify with two-finger clearance and trim excess collar length after the first week once the dog has settled into wearing it. International shipping runs 7-14 days; order before your current protection cycle ends.

The Budget Pet Care listing at $37.89 is for a single Bravecto chew rather than the 2-pack at rank 1 — the per-month cost is slightly higher, but the lower upfront outlay suits owners testing Bravecto for the first time before committing to a 6-month supply. Protection is identical: 3-month coverage, kills fleas within 2 hours, reaches tick efficacy within 12 hours, prescription required. International shipping from Budget Pet Care runs the same 7-14 days as Canada Pet Care. Worth comparing current shipping promotions across both retailers before ordering — the price difference between the two sources narrows when shipping fees are factored in, and either delivers the same authentic Bravecto product from a licensed pharmacy.

Frontline's OTC status is its primary advantage on this page — no prescription required means you can order immediately without a vet visit, which matters when you discover fleas or ticks mid-month between annual checkups. The spot-on application kills adult fleas within 12 hours and disrupts eggs and larvae in the environment, breaking the flea life cycle rather than just eliminating visible adults. Waterproof after 24 hours, so swimming dogs can use this without efficacy loss. At $37.89, it matches the Bravecto budget option at rank 4 in price but requires monthly rather than quarterly dosing — factor in the application frequency when comparing total annual costs across the options on this page.

Also treats and controls 5 types of intestinal worms Keep in mind: prescription required. Keep in mind: does not prevent fleas or ticks.

Heartworm + flea reproduction + 5 intestinal worms in one chew Keep in mind: prescription required. Does not kill adult fleas (prevents reproduction only)